Stencil duplicating machine



necgz, 1924 1,517,275 E.J.BRASSEUR STENCIL DUPLICATING MACHINE FiledOct. 5, 1922 I5 Sheets-Sheet 1 1,517,275 E. J. BRASSEUR STENCILDUPLICATING MACHINE Filed Oct. 5, 192 a Sheets-Sheet 2 1,517,275 5. J.BRASSEURY STENCIL DUPLIGATING MACHINE Filed Oct. 5, 1929.

V 3 Sheets-Sheet 5 Patented Dec. 2, I924.

ERNEST J. BRASSEUR, OF CHICAGO, ILLINOIS, ASSIG'NOR, BY MESNEASSIGNMENTS, TO A. B. DICK COMPANY, OF CHICAGQ ILLINOIS, A CORPORATIONOF ILLINOIS.

STENCIL DUPLICATING- MACHINE.

Application filed October 3, 1922. Serial No. 592,045.

- 1 0 all whom it may concern.

Be it known that I, Ennns'r J. BRASSEUR, a citizen of the United States,residing in the city of Chicago, county of Cook, and State of Illinois,have invented certain new and useful Improvements in Stencil DuplieatingMachines, of which the following is a specification.

The invention relates to stencil-duplicat ing machines, and hasreference more particularly to inking mechanism for use with suchmachines.

The aim of my invention is to provide for duplicating machines animproved inking mechanism which may be operatedreadily, easily andquickly to supply and distribute a controllable quantity of ink over anydesired portion of the machines printing cylinder. Another object of myin ention is to provide an inking device having an ink reservoir whichmay readily and easily be associated with or be removed from aduplicating machine, and so arranged as to decrease any tendency of theink to spill therefrom, either while mounted in the duplicating machineor when removed therefrom, and to be at all times readily accessible andconveniently positioned for filling. Another object of my invention isto provide an inking device which is light, con-- venient and fast tooperate. Another object of my invention isto provide a duplicatingmachine with an easily removable printing cylinder and with meansoperable to distribute ink to said cylinder and also adapted to functionas means for cleaning, the cylinder when the cylinder is removed. Afurther object of my invention is to provide an inking deviceincorporating automatically operating means for preventing discharge ofink at inopportune times. Other objects of my invention will be in partobvious and in part pointed out here-- inafter.

In inking devices now in use the ink tank, the brush and the brush rodare attached together for simultaneous rotation, and in consequence,when the brush is oscillated, the tilting of the tank, and alsocentrifugal force set up by the oscillation, tend to force ink out ofthe tank valves and the filling opening. After only short usage the tankwill be quite covered with ink dripped from the accumulation on thebrush. The ink tanks are usually quite heavy,; especially when filled,and their movement with the oscillating brush very often pounds theoperating parts of the machine out of alignment. In these constructionsthe ink tank is permanently mounted on the duplicating machine, and thefilling opening of the tank is usually in an inaccessible position nearthe center of the printing cylinder, thus making filling diflicult.

In accordance with my invention, the ink tank is not mounted forrotation or oscillation with the brush or brush rod, but is independentof their movements, being" slidably mounted and held in verticalposition on a separate cradle therefor, which is designed to beremovably mounted on the machine. By this means I notonly avoid theabove mentioned objectionable features present in prior constructions,but also produce a device which is faster, easier, and more convenientto operate, since to distribute ink to the cylinder it is not necessaryto oscillate the tank but only the brush and its operating parts, whichare light. The ink tank is equipped with the usual discharge valve whichis manually operative from a rotatable knob at the top of the tank; andto prevent discharge of ink from this valve at undesired times I providemeans for automatically locking the valve against opening, except whenthe tankis in proper position with respect to the ink distributing brushand the cylinder. I pro-- vide a brush operatinghandle which is heldstationary when the cylinder rotates but by means of which the brush maybe moved to an desired portion of the cylinder and be oscillated todistribute thereto ink fed fro..i the ink tank. When mounted in amachine the ink tank presents a filling opening well above the printingcyl nder so as to be readily accessible for filling. The ink tank is soarranged that it may readily and easil be moved on its cradle into andout of operative position with respect to the print ing cylinder, andmeans are provided for automatically locking the tank in inoperativeposition. The cradle ends are so designed that when the cradle is out ofthe machine. he cradle firmly supports itsel and the ink tank in uprightposition. thus preventing leakage- The printing cylinder 1 herebydirected to the invention; Fig; 2

H and the top portion 15 is mounted for removal'with the brush and itsoperating; means from the; machme, and; when'is'o" removed; the brushmay be employed to clean the cylinder.

'ln-forder that;- a; clearer understanding of my invention maybe had,attention is accompanying drawings forminga part of this application andillustrating one possible embodiment of my invention. Referringto' thedrawings. Fig.

1 is a side elevation of a portion of a stencil f duplicating? mach-incembodying my tiie'ink'tank and cradle oft-he inking mechanism; m 8 isatransverse sect onalview taken-onthe line 3e-3. of.v Fig. 1 Fig. 4

is'a plan'view of the brush operating mech anism of the inking; devicerFi is a longitudinal sectional View of the mechanisnish'own in F ig. 4.;llig; '6 is a sectional View taken; on the line 6-6 of Fig. 3-; and .lfi'ig. 7 is aside plan View of the printing cylinder showing the means,partlyin section, for removably holdingtlre cylinder on the inachine.Similar reference characters,

refer to similar parts;throughoutthesev V era-1f views of the drawings.

Referring to the drawings, the stencil duplicatingmachine proper"comprises the usual spaced side members 1 and 2, rotatable printingcylinder 3, impression 4.,"driving gears 5, and "crank handle 6 forrotating the printing cylinder. The inkmechanism-Iincludes a cradle 7and an ink tankd8, whicliis slidably mounted on parallel V rods; 9extending. v

spiders 10 and 11 of the cradle. End 1116111 between end her 10 has avertical central offset portion 12, near the top ofwhich extend oppositelateral" arms 13, and near the bettom. of

whichextendopposite lateral legs 14. The

opposite ,end member. 11 has aT-shaped upper portion 15 and anofifset,forkedlower portion 16. The rods 9 extend and are secured toarms 13 of member 10 of member 11. The ends oftherods 9 protrude on theoutside of member 10, as at 17, and protrdue from the outside or" member'11, as at 18. Y The support 1 of the duplicatingmachine has smallvertical slots or notches for the protruding ends 18 otthe rods 9, andthe duplicating machine support 2 hassimilar small slots, or notches '19for the protriulingmnds 17 of the rods 9. Support 2.ha s also a verticalradial slot 20 to permit the removal 7 of theprintingcylinder, as willhe described Y may readily and "in the duplicating hereinafter;

in th;is slot 20 and-to act as a;fil -ler.the re,- for. WVith thiseasily bemounted in place machine by; merely placing the, cradle inendsfand the offset portion 12 in the respecisa perspective view ofroller between.

Offset 1 2 of cradle member- 10,'ho;vvever, 1S arrangedto removably seatarrangement the ink tank position with .the rod.

tive slots provided therefor in the supporting members 1 and 2 of: theduplicating machine: The ink tank and its cradle may be removed from theduplicating machine by merely lifting it out. of the same and when it isso removed, the ink tank cradle 7 supports itself, and the ink tankmounted thereon, upright on spread legs 14 and 1G. The ink tank 8 has afilling opening at the top; and'a removable sealing cap 2]. is pro videdtherefor. Tank 8 is high with respect to the, printing cylinder so as tobe readily accessible and=ina most. convenient position for, filling thetank. At the bot:- tom-of. tank 8 is a discharge valve 22 which ismanually operable by means of a rotatab'l'elmob23 mounted onthe top ofthe tank.

The ink distributing brush 24 suspended from one end of abrush tube bymeans of an arm 26, the length of which adjustable, as at 27. Cylinder3. has a hub 28 rigidly attached thereto, whichv carries a sleeve 29,penetrating the hub 28. and securedithereto, as by set screws30, torrotationv therewith. Sleeve 29 extends outwardly 'ofprinting cylinder3.and seats in a bearing 31,; and also extends inwardly of hub 28 toform a bearingfor the brush tube 25 whiclris slidably enclosed by sleeve29, but is frictionally engaged thereby. so that the brnsh an dbruslr'tube will rotate with the cylin'der. The axiallyperforatedcylinder 3, is rotatable about the usual stubsliatt 32whichiscarried on support l zit-the opposite side of the machine. Therotation of. the cylinderis effected in the usual manner. means otan arm33 which has a pin34 removably seated in a perforation on the side ofthe printing cylinder 3. Arm 33 isrotatable from crank handle 6.

The brush tube 25 encloses a rod 35, the outer. end of which is secured,as at 36, to the. inner end of a handle 37 which is positioned on theoutsideof sidemember 2. Rod 35 is slidable relatively. to the tube 25,so that-by, grasping handle 37 and moving it outwardly rod 35n1ay heslid outwardly of tube 25. Pivoted on red 35, asat- 38, is a latch 39which has a. head l0 arranged to. look within an annular recess llprovided in tube 25, so that thereafter inward or out ward movementofhandle 37 causes similar movement of bi'ushtube25 and brush 24-.Spring 42 carried by the handle presses the latch toward.lockingposition, and the latch. may be unlocked from this recess bypushingnpon pin. 43, which is. slidably mounted in handle 37 and has itsinner end engaging latch 39. Tube 25- contains'nearits center an.annular member 44, which is notched, as. (K45, to, receive apin 46,-provided near thcnendot' rod 3:), when..latch.;2-39 engages recess 41lVhenthis.engagement has been made, oscillation. of. handle 37' willcausesimilar oscillation of tube 25 and'of the lll') liU brush 24carried thereby. A retainer 47 for the handle is preferably attached, asby means of screws 48, to the outside of supporting member This retainer47 provides two resilient prongs 49 which are adapted to receive aferrule 50 at the base of handle 37 and resiliently hold handle 37 inhorizontal position.

' The valve operating knob 23 of the ink tank carries gear teeth 51which are in permanent mesh with a gear segment 52 carried at the top ofa lever. 53 which is pivoted to the side of the ink tank 8 by means ofscrew 54. The lower end 55 of lever 53 is arranged to engage against theside of brush tube 25 and thereby prevent the turning of the knob 23 toopen the feed valve 22 of the tank. In order to permit of the operationof the knob 23 to open the feed valve 22, the ink tank 8 and lookinglever must be beyond the end of the brush rod 25, and consequently alsobeyond the brush 24. Thus it is seen that by the above means the feedingof ink from the tank is prevented when it would fall upon the brush rodor on other parts where it is not desired, but that the ink can beeasily fed to the interior of the printing cylinder. Before the printingcylinder is rotated, ink tank 8 is moved to inoperative position outsideof the printing cylinder into a space provided between the side of thecylinder and side member 2, as shown by dot and dash lines in Fig". 3. When tank 8 has been moved into this position, a headed pin 56.

. member 2 of the machine below bearing 31.

I provide a coil spring about pivot 59, which at one end engages a pin61 on lever 58 and at the other end engages a pin 62 on side member 2,the spring urging lever 58 upwardly. The lower surface of bearing; 31.serves as a stop for lever 58. Extending; from lever 58 is a projectingarm 63, which is positioned to be engaged and moved downwardly byferrule 50 of handle 37 as this handle is moved from vertical position,shown in dot and dash lines in Fig. 3, to horizontal position and intoengagement with its retainer 47, this movement causing downward movementof the, lever 58. The arrangement is such that when handle 37 is inhorizontal position in its retainer 47, the upper end 64 of lever 58engages behind the head of the pin 56 of the ink tank locking lever 53,and the ink tank is locked against side member 2 and in inoperativeposition. ll heu handle 37 is raised out of its retainer 47, spring60moves lever 58 up wardly, causing its upper end6ei to move from behindthe head of pin 56, thereby unlocking the ink tank from side member 2and permitting it to be moved over the cylinder. Should the handle 37 beplaced in horizontal position within its retainer a7 beforeink tan k 8is moved to its inoperative position, then. when the tank is moved intothis position, the head of pin 56 will strike the top 641' of lever 58so as to cam it aside against the action of spring 60, and when the headof pin 56 has become seated in recess spring 66 will automatically movethe top 6a of lever 58 behind the head of the pin, thus automaticallylocking the tank in inoperative position.

The bearing 28 for the cylinder-supporting sleeve 30 comprises a lowerportion rigidly secured to the side member 2 and an upper half 66, whichis extended inwaxlly of portion 65, as at 67 andis pivoted to the lowerportion 65, as at 68. A bolt 69 pivoted to member 65, as at 70, isadapted to seat within a notch '71 provided therefor in member 66, and awing nut 72 is provided for bolt 69 to hold the two halves 65 and 66 ofthe bearing together. To remove the printing cylinder, the cradle withits ink tankis lifted out of the machine, and then wing nut 72 isloosened and disengaged from bearii'ig member 66, and this member swungupwardly. The cylinder may then be moved laterally toward bearingportion 65 to bring it out of engagement with stub shaft 32 and pin 34:and then the cylinder may be lifted upwardly out of the machine. Theslot 20 provides a clear upward passage for the sleeve 29. The. cylindermay as easily be remountcd in the machine.

Then the cylinder has been so removed, the brush and handle remainintact in the cylinder and may be used to clean the diaphragm of thecylinder by oscillating the brush while submerged or held under runningwater. 7

From the above, the operation of the machine will be readily apparent.When it is desired tofeed and to distribute ink to a portion of thecylinder, the handle 37 is raised out of'its retainer 4-7. Thisoperationv unlocks the ink tank 8 from side member 2 for movement alongits cradle. Ink tank 8 is then moved to the proper place over thecylinder beyond brush rod 25, and by manipulating knob 23 the desiredquantity of ink is fed to the interior surface of. the printingcylinder. Handle 37 is then pulled outwardly until the engagements areeffected between latch 39 and recess 41, and also between pin 46 andnotch 45, whereby brush 24:

is connected with handle 37 for operation thereby. Then the handle 3?'is movedin-t over the desired portions of the cylinder.

/Vhen the distribution of ink'has'b'een eta fected; pm. 43 o? handle 37is pushed mjwardly and handle 3'?" moved toward side support 2 andlocked in its retainer 47. Ink

tank 8 may have been previously moved into inoperative position againstside member Zand outside of the cylinder, or it may I 15" now he movedinto such posit-ion, and in either case will be automatically locked insuchposition by means of the coaction be tween pin 56 and'lever 58Upon'subse quent rotation of the'printingcylinder, the brush tube 25 andbrush 24; will rotate therewith while handle 37 remains stationary.

As many changes couldbe made in the above construction and manyapparently widely different embodiments of this inallmatter contained inthe above-description or shown in the accompanying drawings shall beinterpreted as illustrative and not in a limiting sense.

What Iclaim is p 1. A stencil duplicating machine having acradleremovably mounted thereinand an ink tank slidably mounted on said,cradle, said ink tankadapted to be moved out of the line of the printingaction.

'2. A stencil duplicating machine having a cradle removably 'mountedtherein and an ink tank slidably mounted on said' cradle, said "cradlebeing arranged tomaintain it-' self and said ink tank in uprightposition when removed from said machine. a

3. In a stencil duplicating machine, in combination, side members,acradle remov ably mounted between saidside members and supportedthereby, said cradle having projections'removably seated innotches'provided by said side members, and an ink tank slidably mountedon said cradle.

4c. In stencil duplicating machines, the combination with side supportsand aprinting cylinder between said supports, of a cradle removably'supported between said side supports and having projections eX- tendmgfrom both sides-and an offset portion on one side, notches on said s1desupports for removably receiving said projections and a slot on one sidesupport for removably receiving said ofis'et portion, and an ink tanksupported in vertical position bysaid cradle itorslidable movementacross said cylinder. p o' 5. A stencil duplicating machine having acradle removably mounted therein and an ink tank slidably mounted onsaid cradle,

vention could-"bemade without departing from th'esco' e-thjereof itisintende'd that" determined position on said cradle, said ink tankadapted to be moved in' said cradleoutside of the line of the printingaction.

In a stencil duplicating machine, in combination, side members, an inktank, means supporting saidink tank for movement between said sidemembers, a rotatable printing cylinder between said side memberspositioned to provide space for said ink tank between one of saidside'membcrs anda side of said'cylinder, and means'for locking said inktank 'in said space.

'4'. In a stencil duplicating machine, in combination, side members, aninktank,

means supporting-saidink tank for sliding movement between said sidemembers, a-rotatable printing cylinder between said side memberspositioned to ink tank between one and a side of "said cylinder, andmeans for provide space for said locking said'ink tank in said space,saidmeans comprising aheaded pin movable with said tank and a levermounted onthe' a'd acent side member adapted to lock behind the head ofsaid pin.

' 8. In a stencil duplicating machine, in combination, side members, anink tank, means supporting said ink tank for sliding movement betweensaid side members, a 1'0- tatable printing cylinder between said sidemembers positioned to provide space for said ink tank between one ofsaid side members and a side of said cylinder, and means for lockingsaid ink tank in said space, said means comprising a headed pin movablewith said tank and a lever mounted on the adjacent side member adaptedto look behind the head of said pin, yielding means for maintaining saidlever in looking position,

said lever out of locking position to free said pin and to permit saidink tank to be slid across said cylinder.

9. In a stencil duplicating machine, the combination with a rotatableprinting cylinder, of an ink distributing brush mounted within saidcylinder and connected thereto for rotation therewith, and manuallyoperative means for moving said brush axially and rotatively withrespect to said cylinder.

10 In a stencil duplicating machine, the combination with a side supportand a printin cylinder rotatably mounted thereon, of a brush tubeslidably extending axially into said cylinder, an ink distributing brushsupported from the end of said brush tube within said cylinder, a rodslidably positioned within said tube, a'handle engaging one end of saidrod outside of said side member, and means comprising a latch on saidrod adapted to look within a recess in said tube to lock said rod andtube together for simultaneous movement across said cylinder.

11. In a stencil duplicating machine, the

sliding of said "side members IOU said cylinder, an ink distributingbrush supported from the end of said brush tube within said cylinder, arod slidably positioned within said tube, a handle engaging one end ofsaid rod outside of said side member, and means, comprising a pin onsaid rod adapted to engage within a notch in said tube, wherebyoscillation of said handlecauses oscillation of said brush within saidcylinder. 7

12. In a stencil duplicating machine, the combination with aside supportand a printing cylinder rotatably mounted thereon, ot a brush tubeslidably extending axially into said cylinder, an ink distributing brushsupported fromthe end of said brush tube within said cylinder, a rodslidably positioned within said tube, a handle engaging one end of saidrod outside of said side member, means comprising a latch on said rodadapted to lock within a recess in said tube to lock said rod and tubetogether for simultaneous movement across said cylinder, and means,comprising a manually movable pin carried by said handle and engagingsaid latch for unlocking said latch from said recess, to permit movementof said rod inwardly of said tube.

13. In a stencil duplicating machine, in combination, a side member, arotable printing cylinder, means for rotating said cylinder, an inkdistributing brush within said cylinder, a handle, and means adjustableto connect said brush to said handle for operation thereby andadjustable to disconnect said brush from said handle to permit rotationof said brush with. said cylinder in dependently of said handle.

14. in a stencil duplicating machine, in combination, a side member. arotatable printing cylinder, means for rotating said cylinder, an inkdistributing brush within said cylinder, a handle, and means adjust ableto connect said brush to said handle for operation thereby andadjustable to disconnect said brush from said handle to permit rotationof said brush with said cylinder independently of said handle, saidmeans comprising a brush tube connected with said brush and a rodslidable within said. tube and connected with said handle and aseverable connection between said tube and rod effective when said rodand tube are in one relative position and ineffective when said rod andtube are in an other relative position.

15. In a stencil duplicating machine, in combination, a side member, arotatable printing cylinder, means for rotating said cylinder, an inkdistributing brush within said cylinder, a handle, and means adjustablet c nnect said bru h to s d handle for operation thereby and adjustableto disconnect said brush i romsaid handle to permit rotation oi? saidbrush with said cylinder independently of said handle, and means,comprising a retainer on said side member, for holding said handlestationary while said cylinder and brush rotate.

16. In a stencil duplicating machine, in combination, a printingcylinder, ink distributing means, including a brush movable. over and incontact with the interior suriact of said cylinder, and ink feedingmeans, including an ink tank movable independently of said brush acrosssaid cylinder, and means coacting with both of said means when saidbrush. and tank are inv predetermined relative positions for preventingfeeding of ink by said feeding means while said brush and tank are insuch relative positions.

17. In a stencil duplicating machine, in

combination, a printing cylinder, ink distributing means, including abrush tube mounted for sliding movement inwardly and outwardly of saidcylinder and a brush supported on said tube, ink feeding means,including an ink tank movable independently of said brush and tubeacross said cylinder and provided with operable feed valve mechanism,and means engaging said iced valve mechanism and adapted to coact withsaid brush tube when said brush and tank are in predetermined relativepositions forpreventing valve opening operation of said feed valvemechanism while said brush and tank are in such relative positions.

18. In a stencil duplicating machine, in combination, a printingcylinder, ink distributing means, including a brush tube mounted forsliding movement inwardly and outwardly of said cylinder and a brush.supported on said tube, ink feeding means, including an ink tank movableindependently of said brush and tube across said cylinder and providedwith operable teed valve mechanism, including a rotatable knob providedwith gee r teeth, a lever pivoted on said ink tank and having teethengaging with the teeth of said knob. the opposite end. of said leverbeing arranged to engage against the side oi said brush tube when saidbrush and tank are in predetermined relative positions to prevent theoperation of said feed valve mechanism to feed ink while said brush andtank are in such relative positions.

19. In a stencil duplicating machine, in combination, side members, aremovable cradle mounted in said side members, ink feeding meansarranged on said cradle, a printing cylinder between said side meme hersand bearings for said printing cylinder mounted on said side members,one of sai side members having a slot extending to the said bearingthereon, and bearing havvone side an axial seated Within fsaid upperportioil jie in V in'g :a pivoted 'npper p'or tion rnovable to permitsaid cylinder-to be removed from "said i i side member's.

'20. In a stencil duplicatingfmachine, in coinbinati'on, :a' printingcylinder having on it perforation and having on the other side "anoutwardly extending axial sleeve,a sideinembenhaving a stnb shaftperforation, and another having a bearing for aid bearing comprising afixed Side meinber sleeve, said lower portion and-1amovable ufiper".portion extending inwardly .of said lower portion,

wherebyfwhen said upper portion 15 in one position said cylinder i'smaintained inen- :ga'gement with :said' stub shaft and when anotherposition said cylinder may be moved sidewigse to disengage iirom Saidstub shaft.

21. :In a stencil duplieating machine in combination, a printingcylinder, an ink distributing brush and brush operating mechanisinmounted on said eylindeigflsaid brush operating mechanism permittingsaid v-distributi ng brush to be rotated inde pendently thereof, andmeans adjustable to malntanrsa'id cylinder on the machine, and

adjustablelto .permit removal of said cylinder with said brush andoperating mechanism int-act therewith from the machine. ThisSpecification signed vthis 25th day of September, 1922.

ERNEST J. BRASSEUR.

